Engraving-machine.



C. A. RIVARD.

ENGRAVING MACHINE.

- APPLICATION FILED $EPT.5,19I7- 1,281,838, Pafented Oct. 15, 1918.

s SHEETS-SHUT 1.

C. A. RIVARD.

ENGRAVING MACHSNEv APPUCATION FILED SEPT, 6. 1917v Patented Oct. 15, 1918.

3 SHEETS-SHEET 2.

enema 0. A. RIVARD.

ENGRAVING MACHINE.

APPLICATION FILED SEPT.6, I9i7. 1,281,83w Patenteai Oct. 15, 1918.

3 SHEETS-SHEET 3.

a citizen of the United States,

; feltwant in the CHARLES A. RIVARD, OF PROVIDENCE, RHODE ISLAND, ASSIGNOB TO FACTURING COMPANY, OF PROVIDENCE, RHODE ISLAND,

ISLAND.

nncmAvme-Mrionmn' Specification of Letters Patent.

eonHAM MANU- A CORPORATION or nrronr.

V Patented Oct.15, 1918.

Application filed September 6, 1917. 7 Serial No. 190,028.

To all whom it may concern:

Be. it known that I, CHARLES A. RIVABD, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Engrave ing-Machines, of which the following is a specification.

Thisinvention relates useful improvements in chine, and it has for its to certain new and anengraving maprimary aim and object to provide a machine by which may be produced a roll forrolling metal wire that is much used for ornamental purposes. A machine of this character by which such rolls may be produced has been a long manufacturing trade, and itis, therefore, another object to provide a mechanism of a practical nature which will be efficient in the production and formation of rolls for the rolling of metal wire. Further, the invention resides in the features of construction and arrangements and combinations of parts hereinafterdescribed in detail and claimed in a succinct manner, reference being had to the accompanying drawings wherein tionsi being broken away,-

. Figure l-is'a top plan view of an engraving machine embodying the present invention.

Fig. 2 is a front elevatiorci thereof, por- Fig. 3 is a transverse section through the machine on line 3--3 of Fig. 2.

Referring more particularly to the drawin s, the-numeral 1 designates the bed or body of the machine provided with spaced airs of bearings 2 in which are journaled the shafts 3 and 4, the pattern shaft 3 being extended to carry a drive gear 5 which derives its source of power from any well known and desired form of transmission,

' driving. connection with the tween the connecting gears being such as to give the shafts similar rotary movement.

7 The beam. 11, is pivotally mounted at one end on a fulcrum plate'12 for relative horizontal movement, vertical movement being permitted through the shaft13 which carries the plate and is journaled in bearings 14 on the frame or bed 1. Vertical adjustment is accorded the beam by the adjustably mounted bracket arm 15 that extends outwardly from the bed beneath the beam, the latter having a roller bearing 16 running over the arm. 'A raising and lowering screw 17' is provided for adjusting the relative height of the arm and beam.

The foregoing construction is that of the well known French engraving machine which is described and illustrated in the French patent to V. Janvier, No. 320,564, and which further includes a tracer 18, opposite the pattern shaft 3, and the milling cutter 19, opposite the work shaft 4, both being carried on the beam, as is clearly illustrated. The milling cutter is rotated by means'of an endless belt 20 passing about the pulley 21, on the cutter shaft, and the several idlers 22, a suitable take-up 23 being provided at the pivot end of the beam.

In the French patent above referred to, a face plate was mounted on the outer or front end of each shaft 3 and 4, one plate carrying the pattern and the other bearing the die blank to be cut. a

A beveled gear 24 is substituted for each face plate and with each gear 24 is intermeshed a horizontally disposed and downwardly facing gear 25, the same being fixed on the lower end of a vertical shaft 26 which is journaled in the overhanging bearing 27 of a bracket 28. This bracket has spaced supportingwebs which seat on the bearings 2 of the respective pair and are secured thereto by the screw bolts 29.

A bracket 30 is secured to the front of the bed under each overhanging bracket 28, as by screw bolts 31, and through each bracket 30 is passed upwardly a centering pin 32 forsupporting the master roll 33, carrying the pattern 34, and the roll 35 which -is to be cut' orengraved; The work roll 35 and the master roll 33 are secured to the rebeam for operating on the pattern roll, a spective gear 25 by means of a clamp 36 milling cutter journa'led on the beam for which is pivoted to the-under face of said operating on the die roll, and means for rogear for swinging to a convenient position. tating th'e cutter.

In operation, the tracer in its movement 3. In an engraving machine, horizontally over the pattern imparts an in and out modisposed pattern and work operating shafts, tion to the beamwhich accordingly controls apair of vertically disposedshafts connected the'cut' of the milling cutter on the work therewith, a centering pin arranged beneath roll and produces the pattern either in a re each vertical shaft, a pattern roll vertically duced form, an enlarged form, or "equal in supported by one pin and its overlying verize t0 th et ere ti' al Shaft a Work r011 likewise surperted I Fromtheforegoing, it will appear that by the other pin and its overlying "shaft; a the machine is capableof supplying along atraeer for operatingon the pattern roll, a felt want in the production of rolls which cutter for operating on the work roll, and a are employed in the rolling .ofzmetal into beam support for the tracer and cutter, ornamental material. The change in con; mounted for in and out motion and vertical 30 struction from the above referred to ma adjustment. chine isfcomparatively slight and, with the 4. In an engraving machine for producadditions mentioned such reconstruction ingrolls for vrolling metal wire,- means-for may be economically effected. engaging the opposite ends-lofwpattern-and .I-Iaving-thusdescribed my invention, what work rolls for rotation about vertical ages, 5 I claim as newand desire to secure by Letmeans for rotating the rolls, a tracer for the ters Patent is pattern roll, a cutter for thework-roll, and 1. In an engraving machine a frame, a beam supporting the tracer and cutter: for I spaced pairs of bearings thereon, parallel in and out motion. shafts journaled in the bearings, means op- 5.. In an engravin machine, a framema eratively connecting the shafts, a rotatable pair ofshaftsxjourna ed thereon, abeveled fulcrum plate, on the frame, a beam arranged gear fixed on each shaft to; be rotated therein front of the frame across the ends of the by, a bracket overhanging each gear and shafts and pivoted to the plate for in and provided with a vertically disposed-shaft out movement, a beveled gear on the for hearing, a verticalshaft in each bracket Ward end of each shaft, a bracket secured bearing, a beveled'gear carriedon the lower on the bearings of each pair and having an end of each verticalshaft, saidsecondgear I overhanging shaft bearing vertically disoperatively connectedwith the first gear,

and underlying a respective first named on the work.

posed, a shaft in each bracket, a beveled gear means cooperating with the secondgears for on the lower. end of each last named shaft supporting the pattern 1 and work, a" beam meshing with the first beveled gear, a workmountedfor in and out motion relative to holding clamp pivoted eccentrically on the the pattern and work, a tracer carried by under face of each second beveled gear, a the beam for operatingon the pattern, and bracket secured to the front of the frame a cutter also carried by the beam for action bracket, a'centermg pin vertically disposed 6,. In an engraving machine, a .beam in each underlying bracket to cooperate mounted for in andout motion,-atracer:and

I with the respective workclamp for holding cutter carried thereby, and meansforflrovertically disposed pattern and die rolls, tata'bly supporting -a e pat-tern element and a tracer carried .on the. beam opposite the Work element adjacentthe' tracenand cutter pattern roll, and a milling cutter journaled respectively, one of: saidqelements "being a on the beam opposite the die roll. roll engaged at: its opposite ;ends,for i'ota:

2. In an engraving machine, a frame, a tion aboutits vertical; axis, I

pair of shafts journal ed thereon, a beveled 7In an engraving machine, a pain of gear fixed on each shaft, a bracket overparallel related"liorizontalshafts,meansfor hanging each gear and provided with a verrotating the same, vertical-shafts geared to tically disposed shaft bearing, a vertical the horizontal shafts, means;- carried by each shaft in each: bracket bearing, a beveled vertical shaft for securing a vertical roll gear carried on the lower end of each veraxially thereto, a cutter for operating-on tical-shaft, said second gear operatively conone roll, a. tracer for co ipelat fig withthe nected with the first gear, a bracket underother roll, and mewssupporting thetracer lying each second gear, a centering; pin and-cutter for movement.

I passed upwardly through each: second 8; In an engraving machine, a pain of bracket, means carried by each second gear gears operatively connected, a clamp pivand eo"perating with the respectiveunderoted on a face ofeach; to swing-towardand ly ng pin f r holding the pattern and die away there rom, a. pattern roltusecureda. to lle, a beammountedffor in and ut/mo ion one; gear the adjacent clamp engaging adjacent-1.1211 5 r01 s, ..a tracer carried by the ne endtherwtav rtical workroll; engaged by the other clamp for securing one end name to thisspecification in the presence of thereof to the other gear, and means entwo subscribing Witnesses.

agaging the opposite ends of the rolls for holding the rolls axially related with the CHARLES 5 gears and the clamps substantially against Witnesses:

the faces of the latter. ADA E. HAGERTY,

In testimony whereof I have signed my JOSEPH A.

Copies 01 this patent may be obtained for five cents each, by addressing the "Commissioner of Estonia, Washington, D. 6. 

